Amescon Module M8IN-Px

The eight digital input module fits into one of the module slots on the PiloT Extension Board for the Raspberry Pi. At RS we have two versions, (8474904) with header and (8474923) with pluggable connector. Using the module you can add more digital input to your Pi-based design. The module is ideal for designs requiring buttons, smart meters and sensing.

Features & Benefits of the 8 Input Digital Module (with header)
•5 V to 30 V input voltage
•Switches on half of the reference voltage with hysteresis
•Jumper: internal (5 V or 24 V) or external (5 to 30 V)
•Possible configurations: Input Module (GPIO) or counter (interrupts)
•Dimensions: 36.6 x 29.8 mm

For more on PiloT;

http://www.amescon.com/tutorials/pilot-getting-started
http://www.amescon.com/tutorials/webapi
http://www.amescon.com/tutorials/accesscontrol